Planmeca Proline CC, Technical Manual

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Chapter I - FUNCTIONAL DESCRIPTION
Planmeca Proline CC panoramic x-ray I-5
Technical Manual
1.3 Tube head
Tube head tank itself has got no serviceable parts and must always be returned to the factory for
repair.
For changing tube head see section“CHANGING THE TUBE HEAD” on page H-7.
1.4 Collimator/primary slot mechanism
The collimator tube (Fig. 4, 1) is attached with screws to the radiation window frame. Under a nut
there is an inner primary slot sheet which consists of an aluminium filter plate and lead plates
with holes. The lead plate reduces the radiation beam for the actual primary slot. The aluminium
plate filters the harmful soft radiation. In the outer part of the collimator tube there is a second
inner primary slot (Fig. 4, 2) which reduces secondary radiation scattering from the inner parts of
the collimator tube.
Part (Fig. 4, 3) is the frame of the primary slot mechanism. The primary slot (Fig. 4, 4) is attached
to a slot carriage (Fig. 4, 5) which is attached with bearings to the frame. The stepper motor
draws the slot carriage through a screw (Fig. 4, 6) and a nut (Fig. 4, 7). The drive nut has a plate
which together with an optic sensor (Fig. 4, 2) composes the place reference for the primary slot.
The microprocessor controls the stepper motor. Motor commandment is described in section
“Motors” on page I-10.
The function of the PCB 105-10-08 is described in section “Circuit boards” on page I-8.
Figure 4
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